/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.csp.sentinel.dashboard.controller;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import com.alibaba.csp.sentinel.dashboard.discovery.AppInfo;
import com.alibaba.csp.sentinel.dashboard.discovery.AppManagement;
import com.alibaba.csp.sentinel.dashboard.discovery.MachineInfo;
import com.alibaba.csp.sentinel.dashboard.domain.Result;
import com.alibaba.csp.sentinel.dashboard.domain.vo.MachineInfoVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

/**
 * 返回服务被sentienl监控的服务实例的信息
 */
@RestController
@RequestMapping(value = "/app")
public class AppController {

    @Autowired
    private AppManagement appManagement;

    @GetMapping("/names.json")
    public Result<List<String>> queryApps(HttpServletRequest request) {
        return Result.ofSuccess(appManagement.getAppNames());
    }
    /**
     * {
     * "success": true,
     * "code": 0,
     * "msg": "success",
     * "data": [
     * "demo-main-service",
     * "DATA-COLLECTION-SERVICE",
     * "DATA-TRANSFORM-SERVICE"
     * ]
     * }
     * */




    @GetMapping("/briefinfos.json")
    public Result<List<AppInfo>> queryAppInfos(HttpServletRequest request) {
        List<AppInfo> list = new ArrayList<>(appManagement.getBriefApps());
        Collections.sort(list, Comparator.comparing(AppInfo::getApp));
        return Result.ofSuccess(list);
    }

    /**
     * {
     * "success": true,
     * "code": 0,
     * "msg": "success",
     * "data": [
     * {
     * "app": "DATA-COLLECTION-SERVICE",
     * "appType": 0,
     * "machines": [
     * {
     * "app": "DATA-COLLECTION-SERVICE",
     * "appType": 0,
     * "hostname": "LAPTOP-I3KKQ85M",
     * "ip": "192.168.31.100",
     * "port": 8722,
     * "lastHeartbeat": 1648521285398,
     * "heartbeatVersion": 1648521285395,
     * "version": "1.6.3",
     * "healthy": true,
     * "dead": false
     * }
     * ],
     * "dead": false,
     * "shown": true
     * },
     * {
     * "app": "DATA-TRANSFORM-SERVICE",
     * "appType": 0,
     * "machines": [
     * {
     * "app": "DATA-TRANSFORM-SERVICE",
     * "appType": 0,
     * "hostname": "LAPTOP-I3KKQ85M",
     * "ip": "192.168.31.100",
     * "port": 8721,
     * "lastHeartbeat": 1648521284927,
     * "heartbeatVersion": 1648521284926,
     * "version": "1.6.3",
     * "healthy": true,
     * "dead": false
     * }
     * ],
     * "dead": false,
     * "shown": true
     * },
     * {
     * "app": "demo-main-service",
     * "appType": 0,
     * "machines": [
     * {
     * "app": "demo-main-service",
     * "appType": 0,
     * "hostname": "LAPTOP-I3KKQ85M",
     * "ip": "192.168.31.100",
     * "port": 8720,
     * "lastHeartbeat": 1648521288223,
     * "heartbeatVersion": 1648521288222,
     * "version": "1.6.3",
     * "healthy": true,
     * "dead": false
     * }
     * ],
     * "dead": false,
     * "shown": true
     * }
     * ]
     * }
     * */







//根据app查询
    @GetMapping(value = "/{app}/machines.json")
    public Result<List<MachineInfoVo>> getMachinesByApp(@PathVariable("app") String app) {
        AppInfo appInfo = appManagement.getDetailApp(app);
        if (appInfo == null) {
            return Result.ofSuccess(null);
        }
        List<MachineInfo> list = new ArrayList<>(appInfo.getMachines());
        Collections.sort(list, Comparator.comparing(MachineInfo::getApp).thenComparing(MachineInfo::getIp).thenComparingInt(MachineInfo::getPort));
        return Result.ofSuccess(MachineInfoVo.fromMachineInfoList(list));
    }

    /**
     * {
     * "success": true,
     * "code": 0,
     * "msg": "success",
     * "data": [
     * {
     * "app": "DATA-COLLECTION-SERVICE",
     * "hostname": "LAPTOP-I3KKQ85M",
     * "ip": "192.168.31.100",
     * "port": 8722,
     * "heartbeatVersion": 1648522925397,
     * "lastHeartbeat": 1648522925398,
     * "healthy": true,
     * "version": "1.6.3"
     * }
     * ]
     * }
     * */






//根据app移除监控对象
    @RequestMapping(value = "/{app}/machine/remove.json")
    public Result<String> removeMachineById(
            @PathVariable("app") String app,
            @RequestParam(name = "ip") String ip,
            @RequestParam(name = "port") int port) {
        AppInfo appInfo = appManagement.getDetailApp(app);
        if (appInfo == null) {
            return Result.ofSuccess(null);
        }
        if (appManagement.removeMachine(app, ip, port)) {
            return Result.ofSuccessMsg("success");
        } else {
            return Result.ofFail(1, "remove failed");
        }
    }
}
